Be very careful about listing on eBay internationally. I've read numerous stories of people getting ripped off and being SOL.
True, but if you exercise some common sense, you can avoid falling victim to these scam artists.
When I was upgrading from 3GS to 4, I put the former on eBay. Several days later, some Nigerian scam artist made several very persistent attempts to get mine for free. I decided to mess with him for a while to make him think that he was about to actually get his prize.
First, he sends me this message saying that he's willing to pay 5x of what I'm asking for it if I can ship it to Nigeria ASAP. I pretend to have taken the bait and tell him that I can ship it anywhere (even to Moon or Mars if he wants me to) as long as I get the money upfront.
Surely enough, he uses a cheap trick and replies saying that he has "transferred" the money using PayPal. I immediately reply to him saying that I do not see any new funds in my account. Most would give up at this point, but this one simply doesn't get it and sends me several more messages "assuring" me that he has "paid". All of these messages get prompt replies saying that the payment is not in my account and until it is, he can forget about that phone. Needless to say, by that point the auction has ended, I have received a payment from legitimate winner and sent the phone to him.
At this point, my Nigerian friend realizes that he will need to take more radical steps if he is to get his free iPhone and sends me a "confirmation" from "PayPal". I promptly reply that I have recognized his "confirmation" as a fake and have forwarded it to "FBI" and "InterPol" and that he should be expecting some law enforcement officials to knock on his door shortly. After that, I never heard from him again.
Years ago someone tried to "replace" his broken iPod using the one I was selling on eBay as well. Good thing I wrote down the SN before I sent it out. The buyer has paid fairly quickly, but several hours after he received it, he sent me a message saying that it didn't work. So I said fine, send it back and I will refund the money. So he sent back an iPod with different SN. I replied saying that I am on to him, he can kiss his refund goodbye unless he sends back the iPod that I originally sent to him, and if he wants his old non-working junk back, he will have to pay shipping fees plus $100 for my time. Never heard from him again either. Since then, I always write down SN's of any piece of electronics that I sell. Many times, I put down SN/IMEI in the auction listing itself so that if anyone ever tries to pull this again, I can throw it right at their face.